This is a contagious laughing game. Player #1 lies on their back and places their head on the belly of player #2 . Player #2 then places Their head on the belly of player #3, and so on. Players should end up lying in a zig zag formation. Now the first person shouts "ha!" and the next person answers with "ha ha!" and so on. Each player adds one more "ha". Soon everyone loses control and starts laughing hysterically.